dtls_misc.h File Reference

DTLS (Datagram Transport Layer Security) More...

Go to the source code of this file.

Data Structures
struct	DtlsClientParameters
	Client parameters. More...

Macros
#define	DTLS_VERSION_1_0   0xFEFF
#define	DTLS_VERSION_1_2   0xFEFD
#define	DTLS_VERSION_1_3   0xFEFC
#define	DTLS_SUPPORT   DISABLED
#define	DTLS_DEFAULT_PMTU   1452
#define	DTLS_MIN_PMTU   528
#define	DTLS_REPLAY_DETECTION_SUPPORT   ENABLED
#define	DTLS_REPLAY_WINDOW_SIZE   64
#define	DTLS_MAX_COOKIE_SIZE   32
#define	DTLS_MAX_RETRIES   5
#define	DTLS_INIT_TIMEOUT   1000
#define	DTLS_MIN_TIMEOUT   500
#define	DTLS_MAX_TIMEOUT   60000

Typedefs
struct {
char_t   type
uint32_t   dataStart
uint32_t   dataLength
uint8_t   nameLength
char_t   name []
uint8_t   tokenLen: 4
uint8_t   type: 2
uint8_t   version: 2
uint8_t   code
uint16_t   mid
uint8_t   token []
union {
uint8_t   b [6]
uint16_t   w [3]
}
uint16_t   srcPort
uint16_t   destPort
uint32_t   seqNum
uint32_t   ackNum
uint8_t   reserved1: 4
uint8_t   dataOffset: 4
uint8_t   flags: 6
uint8_t   reserved2: 2
uint16_t   window
uint16_t   checksum
uint16_t   urgentPointer
uint8_t   options []
uint16_t   length
uint8_t   data []
uint8_t   op
uint8_t   htype
uint8_t   hlen
uint8_t   hops
uint32_t   xid
uint16_t   secs
uint16_t   flags
Ipv4Addr   ciaddr
Ipv4Addr   yiaddr
Ipv4Addr   siaddr
Ipv4Addr   giaddr
MacAddr   chaddr
uint8_t   unused [10]
uint8_t   sname [64]
uint8_t   file [128]
uint32_t   magicCookie
uint16_t   type
uint16_t   hardwareType
uint32_t   time
MacAddr   linkLayerAddr
uint16_t   id
uint8_t   rd: 1
uint8_t   tc: 1
uint8_t   aa: 1
uint8_t   opcode: 4
uint8_t   qr: 1
uint8_t   rcode: 4
uint8_t   z: 3
uint8_t   ra: 1
uint16_t   qdcount
uint16_t   ancount
uint16_t   nscount
uint16_t   arcount
uint8_t   questions []
uint16_t   controlWord
uint16_t   byteCount
uint8_t   bLength
uint8_t   bDescriptorType
uint16_t   bcdUsb
uint8_t   bDeviceClass
uint8_t   bDeviceSubClass
uint8_t   bDeviceProtocol
uint8_t   bMaxPacketSize0
uint16_t   idVendor
uint16_t   idProduct
uint16_t   bcdDevice
uint8_t   iManufacturer
uint8_t   iProduct
uint8_t   iSerialNumber
uint8_t   bNumConfigurations
uint8_t   maxRespTime
Ipv4Addr   groupAddr
uint16_t   hrd
uint16_t   pro
uint8_t   hln
uint8_t   pln
uint16_t   op
MacAddr   sha
Ipv4Addr   spa
MacAddr   tha
Ipv4Addr   tpa
uint8_t   length
uint8_t   value []
uint16_t   first
uint16_t   last
uint16_t   next
union {
uint8_t   b [16]
uint16_t   w [8]
uint32_t   dw [4]
}
uint16_t   maxRespDelay
uint16_t   reserved
Ipv6Addr   multicastAddr
uint32_t   reserved
uint16_t   pvid
uint8_t   autoNegSupportStatus
uint16_t   pmdAutoNegAdvCap
uint16_t   operationalMauType
uint16_t   capabilities
uint8_t   deviceType
uint8_t   lengthH: 1
uint8_t   lengthL
uint8_t   t: 1
uint8_t   c: 1
union {
int32_t   integer
uint8_t   octetString [1]
uint8_t   oid [1]
uint8_t   ipAddr [4]
uint32_t   counter32
uint32_t   gauge32
uint32_t   unsigned32
uint32_t   timeTicks
uint64_t   counter64
}
uint16_t   transactionId
uint16_t   protocolId
uint8_t   unitId
uint8_t   pdu []
uint8_t   retain: 1
uint8_t   qos: 2
uint8_t   dup: 1
union {
uint8_t   all
struct {
uint8_t   topicIdType: 2
uint8_t   cleanSession: 1
uint8_t   will: 1
uint8_t   retain: 1
uint8_t   qos: 2
uint8_t   dup: 1
}
}
uint8_t   b: 1
uint8_t   identifier
uint8_t   valueSize
Ipv4Addr   srcIpAddr
Ipv4Addr   destIpAddr
Eui64   interfaceId
uint16_t   mru
uint8_t   peerIdLength
uint8_t   peerId []
uint32_t   seconds
uint32_t   fraction
uint16_t   opcode
char_t   filename []
uint8_t   reserved: 3
uint8_t   fin: 1
uint8_t   payloadLen: 7
uint8_t   mask: 1
uint8_t   extPayloadLen []
uint32_t   length
uint8_t   payload []
uint8_t   protocolVersionId
uint8_t   bpduType
StpBridgeId   rootId
uint32_t   rootPathCost
StpBridgeId   bridgeId
uint16_t   portId
uint16_t   messageAge
uint16_t   maxAge
uint16_t   helloTime
uint16_t   forwardDelay
uint8_t   version1Length
uint16_t   priority
MacAddr   addr
}	DtlsSequenceNumber
	Sequence number. More...
struct {
char_t   type
uint32_t   dataStart
uint32_t   dataLength
uint8_t   nameLength
uint8_t   length: 4
uint8_t   delta: 4
union {
uint8_t   b [8]
uint16_t   w [4]
uint32_t   dw [2]
}
uint8_t   kind
uint8_t   value []
uint8_t   code
uint16_t   type
uint32_t   enterpriseNumber
uint8_t   identifier []
uint16_t   qtype
uint16_t   qclass
uint16_t   statusWord
uint16_t   byteCount
uint8_t   bLength
uint8_t   bDescriptorType
uint16_t   wTotalLength
uint8_t   bNumInterfaces
uint8_t   bConfigurationValue
uint8_t   iConfiguration
uint8_t   bmAttributes
uint8_t   bMaxPower
uint8_t   type
uint16_t   checksum
uint8_t   parameter
uint8_t   unused [3]
uint8_t   data []
uint32_t   parameter
uint8_t   nextHeader
uint8_t   hdrExtLen
uint8_t   options []
uint8_t   curHopLimit
uint8_t   reserved: 2
uint8_t   p: 1
uint8_t   prf: 2
uint8_t   h: 1
uint8_t   o: 1
uint8_t   m: 1
uint16_t   routerLifetime
uint32_t   reachableTime
uint32_t   retransTimer
uint8_t   flags
uint16_t   ppvid
uint8_t   mdiPowerSupport
uint8_t   psePowerPair
uint8_t   powerClass
uint8_t   appType
uint8_t   vlanIdH: 5
uint8_t   x: 1
uint8_t   t: 1
uint8_t   u: 1
uint8_t   l2PriorityH: 1
uint8_t   vlanIdL: 7
uint8_t   dscpValue: 6
uint8_t   l2PriorityL: 2
uint8_t   chassisIdSubtype
uint8_t   chassisId []
uint8_t   functionCode
uint16_t   startingAddr
uint16_t   quantityOfCoils
uint16_t   length
uint8_t   msgType
uint16_t   flags
Ipv4Addr   addr
uint8_t   valueSize
uint16_t   protocol
uint32_t   accm
uint8_t   msgLength
uint8_t   message []
uint8_t   mode: 3
uint8_t   vn: 3
uint8_t   li: 2
uint8_t   stratum
uint8_t   poll
int8_t   precision
uint32_t   rootDelay
uint32_t   rootDispersion
uint32_t   referenceId
NtpTimestamp   referenceTimestamp
NtpTimestamp   originateTimestamp
NtpTimestamp   receiveTimestamp
NtpTimestamp   transmitTimestamp
uint16_t   opcode
char_t   filename []
uint16_t   value []
uint16_t   group
uint8_t   keyExchange []
uint32_t   id
uint32_t   dataLen
}	DtlsCookie
	Cookie. More...
struct {
uint32_t   totalSize
ResRootEntry   rootEntry
MacAddr   destAddr
MacAddr   srcAddr
uint16_t   type
uint8_t   data []
uint16_t   hardwareType
MacAddr   linkLayerAddr
uint16_t   rtype
uint16_t   rclass
uint32_t   ttl
uint16_t   rdlength
uint8_t   rdata []
uint8_t   bLength
uint8_t   bDescriptorType
uint8_t   bInterfaceNumber
uint8_t   bAlternateSetting
uint8_t   bNumEndpoints
uint8_t   bInterfaceClass
uint8_t   bInterfaceSubClass
uint8_t   bInterfaceProtocol
uint8_t   iInterface
uint8_t   type
uint8_t   code
uint16_t   checksum
uint32_t   unused
uint8_t   nextHeader
uint8_t   hdrExtLen
uint8_t   options []
uint32_t   reserved
Ipv6Addr   targetAddr
uint16_t   vlanId
uint8_t   vlanNameLen
char_t   vlanName []
uint8_t   aggregationStatus
uint32_t   aggregatedPortId
uint8_t   locationDataFormat
uint8_t   locationId []
uint8_t   portIdSubtype
uint8_t   portId []
uint8_t   functionCode
uint8_t   byteCount
uint8_t   coilStatus []
uint8_t   prefix
uint16_t   length
uint8_t   msgType
uint8_t   identifier
uint8_t   message []
uint8_t   length
Ipv4Addr   ipAddr
uint16_t   protocol
uint8_t   msgLength
uint8_t   rejectedPacket []
uint32_t   keyId
uint8_t   messageDigest [16]
uint16_t   opcode
uint16_t   block
uint16_t   value []
uint8_t   value []
}	DtlsSupportedVersionList
	List of supported versions. More...
struct {
uint8_t   dsap
uint8_t   ssap
uint8_t   control
uint8_t   msgType
uint8_t   transactionId [3]
uint8_t   options []
uint16_t   rtype
uint16_t   rclass
uint32_t   ttl
uint16_t   rdlength
uint8_t   rdata [4]
uint8_t   bLength
uint8_t   bDescriptorType
uint8_t   bEndpointAddress
uint8_t   bmAttributes
uint16_t   wMaxPacketSize
uint8_t   bInterval
uint8_t   type
uint8_t   code
uint16_t   checksum
uint32_t   unused
uint8_t   data []
uint32_t   mtu
uint8_t   nextHeader
uint8_t   hdrExtLen
uint8_t   routingType
uint8_t   segmentsLeft
uint32_t   reserved
Ipv6Addr   address []
uint8_t   reserved1: 5
uint8_t   o: 1
uint8_t   s: 1
uint8_t   r: 1
uint8_t   reserved2 [3]
Ipv6Addr   targetAddr
uint8_t   protocolIdLen
uint8_t   protocolId []
uint16_t   maxFrameSize
uint8_t   powerPriority: 4
uint8_t   powerSource: 2
uint8_t   powerType: 2
uint16_t   powerValue
uint16_t   ttl
uint8_t   functionCode
uint16_t   startingAddr
uint16_t   quantityOfInputs
uint8_t   gwId
uint16_t   duration
uint8_t   identifier
uint16_t   length
uint8_t   message []
uint8_t   length
Ipv4Addr   ipAddr
uint16_t   protocol
uint16_t   rejectedProtocol
uint8_t   rejectedInfo []
uint16_t   opcode
uint16_t   block
uint16_t   version
uint16_t   epoch
DtlsSequenceNumber   seqNum
uint8_t   hash
uint8_t   signature
uint8_t   value []
}	DtlsRecord
	DTLS record. More...
struct {
uint16_t   tci
uint16_t   type
uint8_t   msgType
uint8_t   hopCount
Ipv6Addr   linkAddress
Ipv6Addr   peerAddress
uint8_t   options []
uint16_t   rtype
uint16_t   rclass
uint32_t   ttl
uint16_t   rdlength
uint8_t   rdata [16]
uint8_t   bLength
uint8_t   bDescriptorType
uint16_t   bString []
uint8_t   type
uint8_t   code
uint16_t   checksum
uint8_t   pointer
uint8_t   unused [3]
uint8_t   data []
uint32_t   unused
uint8_t   nextHeader
uint8_t   payloadLen
uint16_t   reserved
uint32_t   securityParamIndex
uint32_t   sequenceNumber
uint8_t   authData []
uint32_t   reserved
Ipv6Addr   targetAddr
Ipv6Addr   destAddr
uint8_t   measurements [20]
uint16_t   psePowerPriceIndex
uint16_t   supportedCap
uint16_t   enabledCap
uint8_t   functionCode
uint8_t   byteCount
uint8_t   inputStatus []
uint8_t   radius
uint8_t   length
Ipv4Addr   ipAddr
uint32_t   magicNumber
uint8_t   identifier
uint16_t   length
uint16_t   opcode
uint16_t   errorCode
char_t   errorMsg []
uint16_t   msgSeq
uint8_t   fragOffset [3]
uint8_t   fragLength [3]
TlsSignHashAlgo   value []
uint8_t   value []
}	DtlsHandshake
	DTLS handshake message. More...
struct {
uint16_t   code
uint16_t   length
uint8_t   value []
uint16_t   rtype
uint16_t   rclass
uint32_t   ttl
uint16_t   rdlength
uint16_t   priority
uint16_t   weight
uint16_t   port
uint8_t   target []
uint8_t   bFunctionLength
uint8_t   bDescriptorType
uint8_t   bDescriptorSubtype
uint16_t   bcdCdc
uint8_t   type
uint8_t   code
uint16_t   checksum
uint16_t   identifier
uint16_t   sequenceNumber
uint8_t   data []
uint32_t   pointer
uint32_t   securityParamIndex
uint32_t   sequenceNumber
uint8_t   payloadData []
uint8_t   length
uint8_t   powerPriority: 2
uint8_t   pd4pid: 1
uint8_t   reserved: 1
uint8_t   powerSource: 2
uint8_t   powerType: 2
uint16_t   pdRequestedPower
uint16_t   pseAllocatedPower
uint8_t   mgmtAddrLen
uint8_t   mgmtAddrSubtype
uint8_t   mgmtAddr []
uint8_t   functionCode
uint16_t   startingAddr
uint16_t   quantityOfRegs
uint8_t   gwId
uint8_t   gwAdd []
Ipv4Addr   ipAddr
uint8_t   identifier
uint32_t   magicNumber
uint16_t   serverVersion
uint8_t   cookieLength
uint8_t   cookie []
}	DtlsHelloVerifyRequest
	HelloVerifyRequest message. More...
typedef error_t(*	DtlsCookieGenerateCallback) (TlsContext *context, const DtlsClientParameters *clientParams, uint8_t *cookie, size_t *length, void *param)
	DTLS cookie generation callback function. More...
typedef error_t(*	DtlsCookieVerifyCallback) (TlsContext *context, const DtlsClientParameters *clientParams, const uint8_t *cookie, size_t length, void *param)
	DTLS cookie verification callback function. More...

Enumerations
enum	DtlsRetransmitState { DTLS_RETRANSMIT_STATE_PREPARING = 0, DTLS_RETRANSMIT_STATE_SENDING = 1, DTLS_RETRANSMIT_STATE_WAITING = 2, DTLS_RETRANSMIT_STATE_FINISHED = 3 }
	DTLS retransmission states. More...

Functions
error_t	dtlsSelectVersion (TlsContext *context, uint16_t version)
	Set the DTLS version to be used. More...
uint16_t	dtlsTranslateVersion (uint16_t version)
	Translate TLS version into DTLS version. More...
error_t	dtlsFormatCookie (TlsContext *context, uint8_t *p, size_t *written)
	Format Cookie field. More...
error_t	dtlsVerifyCookie (TlsContext *context, const DtlsCookie *cookie, const DtlsClientParameters *clientParams)
	Cookie verification. More...
error_t	dtlsSendHelloVerifyRequest (TlsContext *context)
	Send HelloVerifyRequest message. More...
error_t	dtlsFormatHelloVerifyRequest (TlsContext *context, DtlsHelloVerifyRequest *message, size_t *length)
	Format HelloVerifyRequest message. More...
error_t	dtlsParseHelloVerifyRequest (TlsContext *context, const DtlsHelloVerifyRequest *message, size_t length)
	Parse HelloVerifyRequest message. More...
error_t	dtlsParseClientSupportedVersionsExtension (TlsContext *context, const DtlsSupportedVersionList *supportedVersionList)
	Parse SupportedVersions extension. More...
void	dtlsInitReplayWindow (TlsContext *context)
	Initialize sliding window. More...
error_t	dtlsCheckReplayWindow (TlsContext *context, DtlsSequenceNumber *seqNum)
	Perform replay detection. More...
void	dtlsUpdateReplayWindow (TlsContext *context, DtlsSequenceNumber *seqNum)
	Update sliding window. More...

Detailed Description

DTLS (Datagram Transport Layer Security)

License

SPDX-License-Identifier: GPL-2.0-or-later

Copyright (C) 2010-2023 Oryx Embedded SARL. All rights reserved.

This file is part of CycloneSSL Open.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

Author

Oryx Embedded SARL (www.oryx-embedded.com)

Version

2.2.4

Definition in file dtls_misc.h.

Macro Definition Documentation

DTLS_DEFAULT_PMTU

#define DTLS_DEFAULT_PMTU   1452

Definition at line 48 of file dtls_misc.h.

DTLS_INIT_TIMEOUT

#define DTLS_INIT_TIMEOUT   1000

Definition at line 90 of file dtls_misc.h.

DTLS_MAX_COOKIE_SIZE

#define DTLS_MAX_COOKIE_SIZE   32

Definition at line 76 of file dtls_misc.h.

DTLS_MAX_RETRIES

#define DTLS_MAX_RETRIES   5

Definition at line 83 of file dtls_misc.h.

DTLS_MAX_TIMEOUT

#define DTLS_MAX_TIMEOUT   60000

Definition at line 104 of file dtls_misc.h.

DTLS_MIN_PMTU

#define DTLS_MIN_PMTU   528

Definition at line 55 of file dtls_misc.h.

DTLS_MIN_TIMEOUT

#define DTLS_MIN_TIMEOUT   500

Definition at line 97 of file dtls_misc.h.

DTLS_REPLAY_DETECTION_SUPPORT

#define DTLS_REPLAY_DETECTION_SUPPORT   ENABLED

Definition at line 62 of file dtls_misc.h.

DTLS_REPLAY_WINDOW_SIZE

#define DTLS_REPLAY_WINDOW_SIZE   64

Definition at line 69 of file dtls_misc.h.

DTLS_SUPPORT

#define DTLS_SUPPORT   DISABLED

Definition at line 41 of file dtls_misc.h.

DTLS_VERSION_1_0

#define DTLS_VERSION_1_0   0xFEFF

Definition at line 35 of file dtls_misc.h.

DTLS_VERSION_1_2

#define DTLS_VERSION_1_2   0xFEFD

Definition at line 36 of file dtls_misc.h.

DTLS_VERSION_1_3

#define DTLS_VERSION_1_3   0xFEFC

Definition at line 37 of file dtls_misc.h.

Typedef Documentation

DtlsCookie

typedef { ... } DtlsCookie

Cookie.

DtlsCookieGenerateCallback

typedef error_t(* DtlsCookieGenerateCallback) (TlsContext *context, const DtlsClientParameters *clientParams, uint8_t *cookie, size_t *length, void *param)

DTLS cookie generation callback function.

Definition at line 236 of file dtls_misc.h.

DtlsCookieVerifyCallback

typedef error_t(* DtlsCookieVerifyCallback) (TlsContext *context, const DtlsClientParameters *clientParams, const uint8_t *cookie, size_t length, void *param)

DTLS cookie verification callback function.

Definition at line 245 of file dtls_misc.h.

DtlsHandshake

typedef { ... } DtlsHandshake

DTLS handshake message.

DtlsHelloVerifyRequest

typedef { ... } DtlsHelloVerifyRequest

HelloVerifyRequest message.

DtlsRecord

typedef { ... } DtlsRecord

DTLS record.

DtlsSequenceNumber

typedef { ... } DtlsSequenceNumber

Sequence number.

DtlsSupportedVersionList

typedef { ... } DtlsSupportedVersionList

List of supported versions.

Enumeration Type Documentation

DtlsRetransmitState

enum DtlsRetransmitState

DTLS retransmission states.

Enumerator
DTLS_RETRANSMIT_STATE_PREPARING
DTLS_RETRANSMIT_STATE_SENDING
DTLS_RETRANSMIT_STATE_WAITING
DTLS_RETRANSMIT_STATE_FINISHED

Definition at line 119 of file dtls_misc.h.

Function Documentation

dtlsCheckReplayWindow()

error_t dtlsCheckReplayWindow	(	TlsContext *	context,
		DtlsSequenceNumber *	seqNum
	)

Perform replay detection.

Parameters

[in]	context	Pointer to the TLS context
[in]	seqNum	Sequence number of the received DTLS record

Returns

Error code

Definition at line 471 of file dtls_misc.c.

dtlsFormatCookie()

error_t dtlsFormatCookie	(	TlsContext *	context,
		uint8_t *	p,
		size_t *	written
	)

Format Cookie field.

Parameters

[in]	context	Pointer to the TLS context
[in]	p	Output stream where to write the Cookie field
[out]	written	Total number of bytes that have been written

Returns

Error code

Definition at line 146 of file dtls_misc.c.

dtlsFormatHelloVerifyRequest()

error_t dtlsFormatHelloVerifyRequest	(	TlsContext *	context,
		DtlsHelloVerifyRequest *	message,
		size_t *	length
	)

Format HelloVerifyRequest message.

Parameters

[in]	context	Pointer to the TLS context
[out]	message	Buffer where to format the HelloVerifyRequest message
[out]	length	Length of the resulting HelloVerifyRequest message

Returns

Error code

Definition at line 293 of file dtls_misc.c.

dtlsInitReplayWindow()

void dtlsInitReplayWindow

(

TlsContext *

context

)

Initialize sliding window.

Parameters

[in]

context

Pointer to the TLS context

Definition at line 450 of file dtls_misc.c.

dtlsParseClientSupportedVersionsExtension()

error_t dtlsParseClientSupportedVersionsExtension	(	TlsContext *	context,
		const DtlsSupportedVersionList *	supportedVersionList
	)

Parse SupportedVersions extension.

Parameters

[in]	context	Pointer to the TLS context
[in]	supportedVersionList	Pointer to the SupportedVersions extension

Returns

Error code

Definition at line 403 of file dtls_misc.c.

dtlsParseHelloVerifyRequest()

error_t dtlsParseHelloVerifyRequest	(	TlsContext *	context,
		const DtlsHelloVerifyRequest *	message,
		size_t	length
	)

Parse HelloVerifyRequest message.

When the client sends its ClientHello message to the server, the server may respond with a HelloVerifyRequest message

Parameters

[in]	context	Pointer to the TLS context
[in]	message	Incoming HelloVerifyRequest message to parse
[in]	length	Message length

Returns

Error code

Definition at line 331 of file dtls_misc.c.

dtlsSelectVersion()

error_t dtlsSelectVersion	(	TlsContext *	context,
		uint16_t	version
	)

Set the DTLS version to be used.

Parameters

[in]	context	Pointer to the TLS context
[in]	version	DTLS version

Returns

Error code

Definition at line 55 of file dtls_misc.c.

dtlsSendHelloVerifyRequest()

error_t dtlsSendHelloVerifyRequest

(

TlsContext *

context

)

Send HelloVerifyRequest message.

When the client sends its ClientHello message to the server, the server may respond with a HelloVerifyRequest message. This message contains a stateless cookie

Parameters

[in]

context

Pointer to the TLS context

Returns

Error code

Definition at line 249 of file dtls_misc.c.

dtlsTranslateVersion()

uint16_t dtlsTranslateVersion

(

uint16_t

version

)

Translate TLS version into DTLS version.

Parameters

[in]

version

TLS version

Returns

DTLS version

Definition at line 114 of file dtls_misc.c.

dtlsUpdateReplayWindow()

void dtlsUpdateReplayWindow	(	TlsContext *	context,
		DtlsSequenceNumber *	seqNum
	)

Update sliding window.

Parameters

[in]	context	Pointer to the TLS context
[in]	seqNum	Sequence number of the received DTLS record

Definition at line 552 of file dtls_misc.c.

dtlsVerifyCookie()

error_t dtlsVerifyCookie	(	TlsContext *	context,
		const DtlsCookie *	cookie,
		const DtlsClientParameters *	clientParams
	)

Cookie verification.

Parameters

[in]	context	Pointer to the TLS context
[in]	cookie	Pointer to the client's cookie
[in]	clientParams	Client's parameters

Returns

Error code

Definition at line 180 of file dtls_misc.c.

Variable Documentation

b

uint8_t b[6]

Definition at line 140 of file dtls_misc.h.

cookie

uint8_t cookie[]

Definition at line 204 of file dtls_misc.h.

cookieLength

uint8_t cookieLength

Definition at line 203 of file dtls_misc.h.

data

uint8_t data[]

Definition at line 177 of file dtls_misc.h.

epoch

uint16_t epoch

Definition at line 174 of file dtls_misc.h.

fragLength

uint8_t fragLength[3]

Definition at line 191 of file dtls_misc.h.

fragOffset

uint8_t fragOffset[3]

Definition at line 190 of file dtls_misc.h.

length

uint8_t length[3]

Definition at line 150 of file dtls_misc.h.

msgSeq

uint16_t msgSeq

Definition at line 189 of file dtls_misc.h.

msgType

uint8_t msgType

Definition at line 187 of file dtls_misc.h.

seqNum

DtlsSequenceNumber seqNum

Definition at line 175 of file dtls_misc.h.

serverVersion

uint16_t serverVersion

Definition at line 202 of file dtls_misc.h.

type

uint8_t type

Definition at line 172 of file dtls_misc.h.

value

uint16_t value[]

Definition at line 151 of file dtls_misc.h.

version

uint16_t version

Definition at line 173 of file dtls_misc.h.